/*
 *    Copyright (c) 2018-2025, kexingcp All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * Neither the name of the pig4cloud.com developer nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * Author: kexingcp
 */

package com.evaluation.kexingcp.common.sentinel.handle;

import com.alibaba.csp.sentinel.Tracer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.evaluation.kexingcp.common.core.util.R;
import feign.FeignException;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.validation.BindException;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.resource.NoResourceFoundException;

import java.sql.SQLException;
import java.util.List;

/**
 * @author kexingcp
 * @date 2020-06-29
 */
@Slf4j
@RestControllerAdvice
public class GlobalBizExceptionHandler {

    private final ObjectMapper objectMapper = new ObjectMapper();

    /**
     * 全局异常.
     *
     * @param e the e
     * @return R
     */
    @ExceptionHandler(Exception.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public R handleGlobalException(Exception e) {

        log.error("全局异常信息 ex={}", e.getMessage(), e);

        // 业务异常交由 sentinel 记录
        Tracer.trace(e);
        return R.failed(e.getLocalizedMessage());
    }

    /**
     * SQLException Exception
     *
     * @param exception 数据库调用异常
     * @return R
     */
    @ExceptionHandler({SQLException.class})
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public R handleSQLException(SQLException exception) {
        log.error("数据库调用异常 ex={}", exception.getMessage(), exception);
        return R.failed("数据库调用异常，请联系管理员处理");
    }

    @SneakyThrows
    @ExceptionHandler(FeignException.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public R handleGlobalException(FeignException e) {
        log.error("全局异常信息 ex={}", e.getMessage(), e);

        // 业务异常交由 sentinel 记录
        Tracer.trace(e);

        if (e.responseBody().isPresent()) {
            return objectMapper.readValue(e.responseBody().get().array(), R.class);
        }

        return R.failed(e.getLocalizedMessage());
    }

    /**
     * AccessDeniedException
     *
     * @param e the e
     * @return R
     */
    @ExceptionHandler(AccessDeniedException.class)
    @ResponseStatus(HttpStatus.FORBIDDEN)
    public R handleAccessDeniedException(AccessDeniedException e) {
        log.error("拒绝授权异常信息 ex={}", e.getMessage());
        return R.failed("权限不足，不允许访问");
    }

    /**
     * validation Exception
     *
     * @param exception
     * @return R
     */
    @ExceptionHandler({BindException.class})
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public R handleBodyValidException(BindException exception) {
        List<FieldError> fieldErrors = exception.getBindingResult().getFieldErrors();
        // 插入log 的逻辑
        return R.failed(String.format("%s %s", fieldErrors.get(0).getField(), fieldErrors.get(0).getDefaultMessage()));
    }

    /**
     * 避免 404 重定向到 /error 导致NPE ,ignore-url 需要配置对应端点
     *
     * @return R
     */
    @DeleteMapping("/error")
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public R noHandlerFoundException() {
        return R.failed(HttpStatus.NOT_FOUND.getReasonPhrase());
    }

    /**
     * 保持和低版本请求路径不存在的行为一致
     * <p>
     * <a href="https://github.com/spring-projects/spring-boot/issues/38733">[Spring Boot
     * 3.2.0] 404 Not Found behavior #38733</a>
     *
     * @param exception
     * @return R
     */
    @ExceptionHandler({NoResourceFoundException.class})
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public R noResourceFoundException(NoResourceFoundException exception) {
        log.debug("请求路径 404 {}", exception.getMessage());
        return R.failed(exception.getMessage());
    }

}
